the inside graphite, applied for low and middle pressure, as recycle water, swage

treatment, city building, etc.

Product Comparison

Pin Design

Bottom Cover Design

Bolt & Nut

Painting

Factory Direct Sales

Quality Assurance

Long Time Quality Promise

Our products are with 2 years quality assurance and lifelong maintenance.

Warranty time starts from the dispatch of the goods. Quality assurance means all the cost arising form

the quality problems caused by the manufacturer within two years will be afforded by us.

International Logistics

Delivery Time and Method

In general, the delivery time will be confirmed with the customer in the order,1-2 days

after getting the bank receipt or deposit , the goods will make arrangements.

Shipment: CIF, FOB,etc.

Transportation: air, sea, train, logistics.

After-sales Service

Email

We have an email specialized for customer to ask the position of the shipment

and the express, also make the complain or suggestion.

Mail: info@dbvvalve.com

Free Installation Guide

After receiving the goods, you will get a installation guide from our professional technician.

Q1. Are you a factory or trading company?

A: We are a factory specialized in manufacturing valves over 15 years. We both have factory in Wenzhou and Shanghai.

Q2. Can I have a sample order for valve?

A: Yes, we welcome sample order to test and check quality.Mixed samples are acceptable. The sample is free.

Q3.Do you have any MOQ limit for valve order?

A: Low MOQ, 1pc for sample checking is available

Q4. How do you ship the goods?

A: We usually ship by sea, by air, by courier, etc.

Q5. How to check the process of the order?

A: You can check your order on our website after we provide you account and password.

Q6: Do you offer guarantee for the products?

A: Yes, we offer 2 years warranty to our products and we could repair freely for lifelong time.

Q7: Can you print our Logo on the valves?

A:Yes, we can totally produce products according to your special request, evenmanufacture it base on your drawing. Q8:How can I check your factory situation while it's difficult for me to come to China? A：We have photos and videos on our website, youtube and facebook, It shows every step of the manufacturing.

If you like our valves, please bookmark our Facebook,Twitter, which is easier to find us. if you need it one day in the future, we do appreciate it for your kindness.

Wafer Triple Eccentric Metal Seated Butterfly Valve

ASME Standard

Designand Manufacture Standard:

API 609

Inspection Test Standard:

API 598

Material Pressure-temp. Standard:

ASME B16.34

Flange ends:

Size≤24” according to ANSI B16.5

Face to Face:

Flange Short Pattern toISO5752 Basic Series 13

Dimension Standard:

Size≥24” according to ANSI B16.47 Series B

Dimension Standard:

Flange Long Pattern toASME B16.10

Fire Safe Standard:

API 607

Pressure

Testing Pressure at Constant Temp.(MPa)

Applicable Temp.

Applicable Medium

Class

(LB)

Shell Test

Seal Test

Air Test

-46℃~550℃

W.O.G. etc.

150

3.0

2.2

0.6

300

7.58

5.52

0.6

600

15.0

11.03

0.6

900

22.5

16.5

0.6

DIN Standard

Design and Manufacture Standard:

DIN 2559

Pressure Test:

EN 12266-1

Pressure

Testing Pressure at Constant Temp.（MPa）

Applicable Temp.

Applicable Medium

Shell Test

Seal Test

Air Test

Nominal

Pressure

1.0

1.5

1.1

0.5-0.7

-40℃~570℃

W.O.G. etc.

1.6

2.4

1.76

2.5

3.75

2.75

GOST Standard

Design and Manufacture Standard

JB/8527 API609

Pressure Test

GB/T 13927 API598

Pressure

Testing Pressure at Constant Temp.（MPa）

Applicable Temp.

Applicable Medium

Shell Test

Seal Test

Air Test

Nominal

Pressure

1.0

1.5

1.1

0.5-0.7

-40℃~570℃

W.O.G. etc.

1.6

2.4

1.76

2.5

3.75

2.75

PS: We also can do according to customer's requirements.

Characteristics

1. DBV butterfly valve is characterized by simple structure, small volume and light weight, and it is easy to install and adjust.

The valve is widely used in the medium and low pressure pipeline.

2. Good sealing performance，corrosion resistance，high pressure and temperature resistance, smart control and safe use.3. The unique design of triple eccentricity makes no friction between the sealing surface and extend the valve service life.4. The elastic seal is produced by the torque. 5. The wedge design makes the valve close more and more tightly by automatic sealing function, and there’s compensation

and zero leakage between the sealing surfaces.

Material for Main Parts

Adoption Standard

Parts Name

Material

Body

WCB, 304, 316, 316 L, CF8M,etc.

Disc

WCB, 304, 316, 316 L, CF8M, etc.

Stem

316, 2Cr13, 1Cr18Ni9Ti, etc.

Sealing Ring

316, Fluorine Plastic, etc.

Packing

Flexible Graphite, Fluorine Plastic, etc.

Production Flow

DBV Introduction

1. Factory Overview

2. Quality Control

3. Storage and Warehouse

4. Package and Delivery

5. Honor and Certificate

Cases

1.Custom Visiting

2.Exhibition

3.Application

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